Talk:High School Chemistry/Electrons and Light

Quiz

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1 In 1900s, scientists found out that different elements made different colored-flames. What can be observed from this?

	This never happened.
	Protons and neutrons both cause these different colors.
	It depends on the electron's atomic mass.
	The arrangement of electrons determine the different colored-flames.

2 Complete the measurements.

1. v:

2. λ:

3 What is the speed of light?

4 Fill out the information.

As wavelength increases, frequency . As frequency increases, wavelength .

5 Which description fits the description for harmful wavelengths/frequencies?

	Long wavelength, high frequency
	Short wavelength, short frequency
	Short wavelength, high frequency
	High frequency, short wavelength

6 Fill out the information.

The visible spectrum goes from nanometers to nanometers.

7 Complete the formulas.

1. The mathematical relationship between energy and frequency:

2. The mathematical relationship between wavelength and frequency:

3. What is Planck's constant? .

8 Max Planck states that energy is quantized, and not continuous. Electromagnetic rays travel in waves and are made out of _____. Atoms can gain or lose energy in small amounts known as _____. Electrons have to ______ energy in order to move up through the orbits and ______ energy in order to move down through the orbits.

	quanta, photons, release, absorb
	photons, quanta, release, absorb
	photons, quanta, lose, absorb
	photons, quanta, absorb, lose

9 Complete the blanks with the correct information.

Electrons to the nucleus are the lowest in energy

10 Who found out that light is made up of photons?

	Mannhoauf Einzwegol
	Carl Bosch
	Albert Einstein
	Adolf Friedrich Johann Butenandt

11 Who stated that merely the act of observing an electron changes its position and velocity?

	J. J. Thomson
	Carl Bosch
	Albert Einstein
	Werner Heisenberg

12 Which rule requires you to fill up your lowest energy level before moving up to the next energy level?

	Aufbau
	Paul exclusion principle
	Hund's rule